[ewg] RE: OFED 1.2 beta blocking bugs

[Scott Weitzenkamp (sweitzen)]

There are also IPoIB CM IP multicast problems, see bug 418.

If you try to multicast packets > 2KB, you see:

ib0: failed send event (status=1, wrid=35 vend_err 69)
ib_mthca 0000:08:00.0: modify QP 3->3 returned status 10.
ib0: failed to modify QP, ret = -22
ib0: couldn't attach QP to multicast group
ff12:401b:ffff:0000:0000:0000:0001:01
01
ib0: multicast join failed for ff12:401b:ffff:0000:0000:0000:0001:0101,
status
-
22

Scott Weitzenkamp
SQA and Release Manager
Server Virtualization Business Unit
Cisco Systems
 

> -----Original Message-----
> From: Sean Hefty [mailto:mshefty at ichips.intel.com] 
> Sent: Thursday, March 08, 2007 9:55 AM
> To: Michael S. Tsirkin
> Cc: Scott Weitzenkamp (sweitzen); Openfabrics-ewg at openib.org; 
> Vladimir Sokolovsky; Tziporet Koren; Pavel Shamis; Jeff 
> Squyres (jsquyres); Shaun Rowland; Woodruff, Robert J; 
> general at lists.openfabrics.org
> Subject: Re: OFED 1.2 beta blocking bugs
> 
> > ipoib HA is just a script that brings interfaces up/down.  
> Juding by the error
> > messages, we are trying to attach QP to a non-existent MC 
> group.  You
> > implemented both the multicast module and ported ipoib to it, so ...
> 
> I looked at the code, and didn't see anything obviously 
> wrong.  Can you tell me 
> how to reproduce the issue?  (I'm running 2.6.21-rc3.)
> 
> > Please feel free to take over and replace this patch with 
> whatever you find fit.
> 
> Reverting the misc update patch should work fine.  (I can't 
> get to bugzilla atm 
> to see the error.)  But there were also backport patches for 
> the umca in OFED 
> 1.1.  Failing that, I have a pf-2.6.18 branch in my 
> rdma-dev.git tree that 
> backports most of the IB code to 2.6.18.
> 
> - Sean
>